The average British worker driving to the office spends around £1,017 a year, a new survey has found.
However, with 38 million seats unoccupied on the motorway, Halifax Car Insurance is surprised more people are not splitting the cost.
For a small increase in car insurance in the form of a mileage payment, workers could wipe out £500 from the cost of getting to work, doing their bit for the environment at the same time.
By reducing traffic, car sharing also decreases the risk of an accident, which will help drivers to protect their all-important no claims bonus.
And having someone in the passenger seat "can also act as an extra pair of eyes for you, especially in the morning rush hour when traffic is at its heaviest," said Mike Pickard, head of risk and underwriting at the bank.
Young people are the most likely to share the cost of commuting, around a third of 18 to 24 year-olds going halves with another worker.
However, the trend decreases the older a driver gets, with only one per cent of 55 to 64 year-olds prepared to share. To read more about car insurance, click here.
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